PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-07:28:10
G08     292.3          23.1                3.6 +/-    1.10       7.4 +/-    1.10  0.100 / 0.100
G10     12.9           62.8                2.5 +/-    0.58       2.7 +/-    0.58  0.120 / 0.120
G14     230.5          48.2                5.9 +/-    0.67       7.6 +/-    0.67  0.030 / 0.030
G18     317.8          12.4               -0.6 +/-    5.46      -1.5 +/-    5.46  0.030 / 0.030
G20     67.3           51.4                3.6 +/-    0.40       4.5 +/-    0.40  0.050 / 0.110
G21     147.1          38.1                5.4 +/-    0.91       8.1 +/-    0.91  0.040 / 0.100
G24     54.4           24.4                1.9 +/-    0.66       3.7 +/-    0.66  0.060 / 0.090
G27     254.6          31.4                5.5 +/-    0.68       9.3 +/-    0.68  0.060 / 0.070
G32     244.5          64.7                6.0 +/-    1.18       6.6 +/-    1.18  0.080 / 0.120